<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>后台管理系统 - 登录页线框图</title>
  <style>
    body {
      margin: 0;
      padding: 0;
      background: linear-gradient(120deg, #6a9cfb 0%, #a084ee 100%);
      min-height: 100vh;
      font-family: Arial, sans-serif;
    }
    .container {
      display: flex;
      justify-content: flex-end;
      align-items: center;
      height: 100vh;
      padding: 40px;
      box-sizing: border-box;
    }
    .login-card {
      width: 400px;
      background: #fff;
      border-radius: 20px;
      box-shadow: 0 4px 24px rgba(80, 60, 180, 0.10);
      padding: 40px 32px 32px 32px;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .title {
      font-size: 2rem;
      font-weight: bold;
      text-align: center;
      margin-bottom: 8px;
    }
    .subtitle {
      font-size: 1rem;
      color: #888;
      text-align: center;
      margin-bottom: 16px;
    }
    .desc-box {
      background: rgba(160, 132, 238, 0.10);
      border-radius: 10px;
      text-align: center;
      padding: 16px 0;
      margin-bottom: 8px;
      color: #a084ee;
      font-size: 1.2rem;
      letter-spacing: 1.2em;
      font-weight: bold;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-label {
      font-size: 1rem;
      margin-bottom: 2px;
      color: #333;
    }
    .form-input {
      padding: 10px 12px;
      border: 1px solid #e0e0e0;
      border-radius: 8px;
      font-size: 1rem;
      outline: none;
    }
    .form-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 8px;
    }
    .checkbox-label {
      display: flex;
      align-items: center;
      font-size: 0.95rem;
      color: #666;
    }
    .form-link {
      color: #a084ee;
      text-decoration: none;
      font-size: 0.95rem;
    }
    .form-actions {
      display: flex;
      gap: 16px;
      margin-top: 16px;
    }
    .btn-primary {
      flex: 1;
      background: linear-gradient(90deg, #a084ee 0%, #6a9cfb 100%);
      color: #fff;
      border: none;
      border-radius: 8px;
      padding: 12px 0;
      font-size: 1.1rem;
      font-weight: bold;
      cursor: pointer;
      transition: background 0.2s;
    }
    .btn-secondary {
      flex: 1;
      background: #fff;
      color: #a084ee;
      border: 2px solid #a084ee;
      border-radius: 8px;
      padding: 12px 0;
      font-size: 1.1rem;
      font-weight: bold;
      cursor: pointer;
      transition: background 0.2s, color 0.2s;
    }
    .btn-secondary:hover {
      background: #f3f0fa;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="login-card">
      <div class="title">后台管理系统</div>
      <div class="subtitle">现代化管理平台</div>
      <div class="desc-box">配置 说明</div>
      <form>
        <div class="form-group">
          <label class="form-label" for="username">用户名</label>
          <input class="form-input" id="username" type="text" placeholder="请输入用户名" />
        </div>
        <div class="form-group">
          <label class="form-label" for="password">密码</label>
          <input class="form-input" id="password" type="password" placeholder="请输入密码" />
        </div>
        <div class="form-row">
          <label class="checkbox-label"><input type="checkbox" /> 记住我</label>
          <a class="form-link" href="#">忘记密码?</a>
        </div>
        <div class="form-actions">
          <button class="btn-primary" type="submit">登录</button>
          <button class="btn-secondary" type="button">注册</button>
        </div>
      </form>
    </div>
  </div>
</body>
</html>
